53785071 has 12 divisors (see below), whose sum is σ = 79584960. Its totient is φ = 34981920.

The previous prime is 53785051. The next prime is 53785097. The reversal of 53785071 is 17058735.

53785071 is a `hidden beast` number, since 537 + 8 + 50 + 71 = 666.

It is not a de Polignac number, because 53785071 - 2⁶ = 53785007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53785051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72511 + ... + 73248.

It is an arithmetic number, because the mean of its divisors is an integer number (6632080).

Almost surely, 2^53785071 is an apocalyptic number.

53785071 is a deficient number, since it is larger than the sum of its proper divisors (25799889).

53785071 is a wasteful number, since it uses less digits than its factorization.

53785071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145806 (or 145803 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 53785071 is about 7333.8305816265. The cubic root of 53785071 is about 377.4741786060.

The spelling of 53785071 in words is "fifty-three million, seven hundred eighty-five thousand, seventy-one".